a0390e5cc3
This adds fractional FPS support to blender and should finally
make NTSC work correctly.
NTSC has an FPS of 30.0/1.001 which is approximately 29.97 FPS.
Therefore, it is not enough to simply make frs_sec a float, since
you can't represent this accurately enough.
I added a seperate variable frs_sec_base and FPS is now
frs_sec / frs_sec_base.
I changed all the places, where frs_sec was used to my best knowledge.
For convenience sake, I added several macros, that should make life
easier in the future:
FRA2TIME(a) : convert frame number to a double precision time in seconds
TIME2FRA(a) : the same in the opposite direction
FPS : return current FPS as a double precision number
(last resort)
This closes bug #6715
Standard framerates not supported / breaks sync -- 23.967 29.967 etc.
https://projects.blender.org/tracker/?func=detail&aid=6715&group_id=9&atid=125
Please give this heavy testing with NTSC files, quicktime in/export
and the python interface.
Errors are most probably only spotted on longer timelines, so that is
also important.
The patch was tested by Troy Sobotka and me, so it most probably should
work out of the box, but wider testing is important, since errors are
very subtle.
Enjoy!
88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
/**
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* $Id$
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*
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* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version. The Blender
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* Foundation also sells licenses for use in proprietary software under
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* the Blender License. See http://www.blender.org/BL/ for information
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* about this.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL/BL DUAL LICENSE BLOCK *****
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*/
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#ifndef BIF_EDITSOUND_H
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#define BIF_EDITSOUND_H
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struct bSound;
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struct bSample;
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struct ListBase;
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struct PackedFile;
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struct hdaudio;
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void sound_init_audio(void);
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void sound_initialize_sounds(void);
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void sound_exit_audio(void);
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int sound_get_mixrate(void);
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void* sound_get_audiodevice(void);
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void* sound_get_listener(void);
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int sound_set_sample(struct bSound* sound, struct bSample* sample);
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int sound_sample_is_null(struct bSound* sound);
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int sound_load_sample(struct bSound* sound);
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struct bSample* sound_find_sample(struct bSound* sound);
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struct bSample* sound_new_sample(struct bSound* sound);
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struct bSound* sound_new_sound(char *name);
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struct bSound* sound_make_copy(struct bSound* originalsound);
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void sound_end_all_sounds(void);
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void sound_initialize_sample(struct bSound * sound);
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void sound_load_samples(void);
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void sound_play_sound(struct bSound *sound);
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void sound_stop_all_sounds(void);
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void sound_set_position(void *object,
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struct bSound *sound,
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float obmatrix[4][4]);
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struct hdaudio * sound_open_hdaudio(char * name);
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struct hdaudio * sound_copy_hdaudio(struct hdaudio * c);
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long sound_hdaudio_get_duration(struct hdaudio * hdaudio, double frame_rate);
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void sound_hdaudio_extract(struct hdaudio * hdaudio,
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short * target_buffer,
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int sample_position /* units of target_rate */,
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int target_rate,
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int target_channels,
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int nb_samples /* in target */);
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void sound_close_hdaudio(struct hdaudio * hdaudio);
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#endif
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